EXAMPLE:
Here, the application is a walk-a-way with a fixed source at 0,0,0 and a single moving vertical component geophone, starting at an offset of 10 meters walking in 1 meter steps toward
the source. This is labor intensive, but very flexible.
genwaw Enter Number of Channels 1 GEOPHONE ORIENTATIONS Geophone Az 90=East Ver 180=Down Channel=0 Enter Geophone Orientation Az Ver 0 180 |----------------------------------------| | Copyright (C) 2017 P. Michaels | | All rights reserved | | See GNU General Public License | |----------------------------------------| waw: TIME: 15:38:11 DATE: 29/May/2020 Nsources= 10 SOURCE LOCATION------------------------------------- 0000.DAT: Enter Source X Y Z 0 0 0 Trace:00 Enter Receiver X Y Z 10. 0 0 SOURCE LOCATION------------------------------------- 0001.DAT: Enter Source X Y Z 0 0 0 Trace:00 Enter Receiver X Y Z 9 0 0 SOURCE LOCATION------------------------------------- 0002.DAT: Enter Source X Y Z 0 0 0 Trace:00 Enter Receiver X Y Z 8. 0 0 . . etc.... . SOURCE LOCATION------------------------------------- 0009.DAT: Enter Source X Y Z 0 0 0 Trace:00 Enter Receiver X Y Z 1.0 0 0NOTE: If there were more than one trace in each *.DAT file, there would be additional “Trace:” questions to answer. Output includes the creation of a child directory, LST, in which the list files for each *.DAT file are stored. These are the result of the interactive program calling EGG2SEG 3.1.6. In this example, there will be files 0000.seg through 0009.seg, each with a single trace, now with headers as entered in GENWAW. To merge these into a single file, use BMRG (see 11.0.1). The command would be
bmrg 000 0 9 1 1 1
----------------------------------------------------------------------------------- Length = 500 samples | Shot Elevation = 0.0 Sample Interval = 0.00100 sec. | Shot Depth = 0.0 Delay Time = 0 msec. | Up Hole Time = 0 msec Low Cut Filter = 0 Hz. | Shot X-COORD = 0.00 High Cut Filter = 100 Hz. | Shot Y-COORD = 0.00 Line ID: 000 | Shot Date (year.moday) = 2019.0423 Shot Orientation: | Shot Time (hr:min) = 15:20 Azimuth= 0 Deg. Vertical= 0 Deg.| Charge Size (grams)= 0 ----------------------------------------------------------------------------------- TRACE|SHOT| STATION | OFFSET| RECEIVER |VERT|1STBRK|K-GAIN|AZI|VER| # |REC.|SHOT REC| | ELEV. X-COORD Y-COORD|FOLD|(SEC.)| (dB) | | | -----|----|---------|-------|----------------------------|--|------|------|---|---| 1 | 0|0000 0001| 10.00| 0.00 10.00 0.00| 1|0.0000| 19 | 0|180| 2 | 1|0000 0001| 9.00| 0.00 9.00 0.00| 1|0.0000| 19 | 0|180| 3 | 2|0000 0001| 8.00| 0.00 8.00 0.00| 1|0.0000| 19 | 0|180| 4 | 3|0000 0001| 7.00| 0.00 7.00 0.00| 1|0.0000| 19 | 0|180| 5 | 4|0000 0001| 6.00| 0.00 6.00 0.00| 1|0.0000| 19 | 0|180| 6 | 5|0000 0001| 5.00| 0.00 5.00 0.00| 1|0.0000| 19 | 0|180| 7 | 6|0000 0001| 4.00| 0.00 4.00 0.00| 1|0.0000| 19 | 0|180| 8 | 7|0000 0001| 3.00| 0.00 3.00 0.00| 1|0.0000| 19 | 0|180| 9 | 8|0000 0001| 2.00| 0.00 2.00 0.00| 1|0.0000| 19 | 0|180| 10 | 9|0000 0001| 1.00| 0.00 1.00 0.00| 1|0.0000| 19 | 0|180|